<a href="slides/gourmet.jpg" title="">
<img src="thumbs/gourmet.jpg" alt="Gourmet" title="Gourmet" style="width: 90px; height: 90px;" rel="width:550;;height:456"/>
</a>
</li>
code javascript faisant appel a l'element rel
/**
* Galleria (http://monc.se/kitchen)
*
* Galleria is a javascript image gallery written in jQuery.
* It loads the images one by one from an unordered list and displays thumbnails when each image is loaded.
* It will create thumbnails for you if you choose so, scaled or unscaled,
* centered and cropped inside a fixed thumbnail box defined by CSS.
*
* The core of Galleria lies in it's smart preloading behaviour, snappiness and the fresh absence
* of obtrusive design elements. Use it as a foundation for your custom styled image gallery.
*
* MAJOR CHANGES v.FROM 0.9
* Galleria now features a useful history extension, enabling back button and bookmarking for each image.
* The main image is no longer stored inside each list item, instead it is placed inside a container
* onImage and onThumb functions lets you customize the behaviours of the images on the site
*
* Tested in Safari 3, Firefox 2, MSIE 6, MSIE 7, Opera 9
*
* Version 1.0
* Februari 21, 2008
*
* Copyright (c) 2008 David Hellsing (http://monc.se)
* Licensed under the GPL licenses.
*
http://www.gnu.org/licenses/gpl.txt
**/
;(function($){
var $$;
/**
*
* @desc Convert images from a simple html <ul> into a thumbnail gallery
* @author David Hellsing
* @version 1.0
*
* @name Galleria
* @type jQuery
*
* @cat plugins/Media
*
* @example $('ul.gallery').galleria({options});
* @desc Create a a gallery from an unordered list of images with thumbnails
* @options
* insert: (selector string) by default, Galleria will create a container div before your ul that holds the image.
* You can, however, specify a selector where the image will be placed instead (f.ex '#main_img')
* history: Boolean for setting the history object in action with enabled back button, bookmarking etc.
* onImage: (function) a function that gets fired when the image is displayed and brings the jQuery image object.
* You can use it to add click functionality and effects.
* f.ex onImage(image) { image.css('display','none').fadeIn(); } will fadeIn each image that is displayed
* onThumb: (function) a function that gets fired when the thumbnail is displayed and brings the jQuery thumb object.
* Works the same as onImage except it targets the thumbnail after it's loaded.
*
**/
$$ = $.fn.galleria = function($options) {
// check for basic CSS support
if (!$$.hasCSS()) { return false; }
// init the modified history object
$.historyInit($$.onPageLoad);
// set default options
var $defaults = {
insert : '.galleria_container',
history : true,
clickNext : true,
onImage : function(image,caption,thumb) {},
onThumb : function(thumb) {},
onPrev : function() {},
onNext : function() {},
onPrevFast : function() {},
onNextFast : function() {},
preloads : 3,
fastSteps : 3
};
// extend the options
var $opts = $.extend($defaults, $options);
// bring the options to the galleria object
for (var i in $opts) {
$.galleria
= $opts[i];
}
// if no insert selector, create a new division and insert it before the ul
var _insert = ($($opts.insert).is($opts.insert)) ?
$($opts.insert) :
jQuery(document.createElement('div')).insertBefore(this);
// create a wrapping div for the image
var _div = $(document.createElement('div')).addClass('galleria_wrapper');
// create a caption span
var _span = $(document.createElement('span')).addClass('caption');
// inject the wrapper in in the insert selector
_insert.addClass('galleria_container').append(_div).append(_span);
//-------------
return this.each(function(){
// add the Galleria class
$(this).addClass('galleria');
// loop through list
$(this).children('li').each(function(i) {
// bring the scope
var _container = $(this);
// build element specific options
var _o = $.meta ? $.extend({}, $opts, _container.data()) : $opts;
// remove the clickNext if image is only child
_o.clickNext = $(this).is(':only-child') ? false : _o.clickNext;
/************************** Modified to get faster loads ******************************************/
// try to fetch an anchor
var _a = $(this).find('a');
// reference the original image as a variable and hide it
var _img = $(this).children('img').css('display','none');
// extract the original source
var _src = _a.attr('href');
// Added for faster loads
if (i < _o.preloads) {
$.galleria.queue.push(_src);
}
// find a title
var _title = _a.attr('title');
// check url and activate container if match
if (_o.history && (window.location.hash && window.location.hash.replace(/\#/,'') == _src)) {
_container.siblings('.active').removeClass('active');
_container.addClass('active');
}
var _thumb = _a.find('img').addClass('thumb').css('display','none');
_thumb.relToData();
_a.replaceWith(_thumb);
// center thumbnails.
_thumb.css({
marginLeft: (_thumb.width > 0 ? (-( _thumb.width() - _container.width() )/2) : 0),
marginTop: (_thumb.height > 0 ? (-( _thumb.height() - _container.height() )/2) : 0)
});
// add the rel attribute
_thumb.attr('rel',_src);
// add the title attribute
_thumb.attr('title',_title);
// add the click functionality to the _thumb
_thumb.click(function() {
$.galleria.activate(_src);
});
// hover classes for IE6
_thumb.hover(
function() { $(this).addClass('hover'); },
function() { $(this).removeClass('hover'); }
);
_container.hover(
function() { _container.addClass('hover'); },
function() { _container.removeClass('hover'); }
);
// prepend the thumbnail in the container
_container.prepend(_thumb);
// show the thumbnail
_thumb.css('display','block');
// call the onThumb function
_o.onThumb(jQuery(_thumb));
// check active class and activate image if match
if (_container.hasClass('active')) {
$.galleria.activate(_src);
}
// finally delete the original image
_img.remove();
/********************************************************************/
});
// Added for faster loading. Init loading.
var _first = $.galleria.nextInQueue();
if (_first != null) {
$.galleria.preload(_first);
}
});
};
/**
*
* @name NextSelector
*
* @desc Returns the sibling sibling, or the first one
*
**/
$$.nextSelector = function(selector) {
return $(selector).is(':last-child') ?
$(selector).siblings(':first-child') :
$(selector).next();
};
/**
*
* @name previousSelector
*
* @desc Returns the previous sibling, or the last one
*
**/
$$.previousSelector = function(selector) {
return $(selector).is(':first-child') ?
$(selector).siblings(':last-child') :
$(selector).prev();
};
/**
* Added to enable fast stepping
*
**/
$$.stepSelector = function(selector, steps) {
var _s = $(selector).parent().find('> li');
var _i = _s.index(selector) + steps;
var _l = _s.length;
if (_i > (_l - 1)) {
_i -= _l;
} else if (_i < 0) {
_i += _l;
}
return $(selector).parent().find(':nth-child(' + (_i + 1) + ')');
};
/**
*
* @name hasCSS
*
* @desc Checks for CSS support and returns a boolean value
*
**/
$$.hasCSS = function() {
$('body').append(
$(document.createElement('div')).attr('id','css_test')
.css({ width:'1px', height:'1px', display:'none' })
);
var _v = ($('#css_test').width() != 1) ? false : true;
$('#css_test').remove();
return _v;
};
/**
*
* @name onPageLoad
*
* @desc The function that displays the image and alters the active classes
*
* Note: This function gets called when:
* 1. after calling $.historyInit();
* 2. after calling $.historyLoad();
* 3. after pushing "Go Back" button of a browser
*
**/
$$.onPageLoad = function(_src) {
// get the wrapper
var _wrapper = $('.galleria_wrapper');
// get the thumb
// Modified to work with latest version of jQuery
var _thumb = $('.galleria img[rel="'+_src+'"]');
if (_src) {
// new hash location
if ($.galleria.history) {
window.location = window.location.href.replace(/\#.*/,'') + '#' + _src;
}
// alter the active classes
_thumb.parents('li').siblings('.active').removeClass('active');
_thumb.parents('li').addClass('active');
// define a new image
// Modified for faster loads
var _loader = $.galleria.loader;
if (!$.galleria.isLoaded(_src) && _loader != null) {
var _width = _thumb.data('width');
var _height = _thumb.data('height');
_wrapper.empty().append(_loader.css({
'width' : _width + 'px',
'height' : _height + 'px',
'display' : 'none' }).fadeIn('fast'));
_loader.children('img').css('marginTop', (_height/3) + 'px');
_wrapper.siblings('.caption').empty();
// Also hide siblings to parent of wrapper
// Added to remove additional metadata
_wrapper.parent().siblings().hide();
}
var _img = $.galleria.loadImage(_src, function() {
// empty the wrapper and insert the new image
_wrapper.empty().append($(this));
// insert the caption
// Modified to allow html in captions
_wrapper.siblings('.caption').html(_thumb.attr('title'));
// fire the onImage function to customize the loaded image's features
$.galleria.onImage($(this),_wrapper.siblings('.caption'),_thumb);
// add clickable image helper
if($.galleria.clickNext) {
$(this).css('cursor','pointer').click(function() { $.galleria.next(); })
}
// Added to deal with weird resize bug in IE
$(this).removeAttr('width');
$(this).removeAttr('height');
}).addClass('replaced');
} else {
// clean up the container if none are active
_wrapper.siblings().andSelf().empty();
// remove active classes
$('.galleria li.active').removeClass('active');
}
// place the source in the galleria.current variable
$.galleria.current = _src;
};
/**
*
* @name jQuery.galleria
*
* @desc The global galleria object holds four constant variables and four public methods:
* $.galleria.history = a boolean for setting the history object in action with named URLs
* $.galleria.current = is the current source that's being viewed.
* $.galleria.clickNext = boolean helper for adding a clickable image that leads to the next one in line
* $.galleria.next() = displays the next image in line, returns to first image after the last.
* $.galleria.prev() = displays the previous image in line, returns to last image after the first.
* $.galleria.activate(_src) = displays an image from _src in the galleria container.
* $.galleria.onImage(image,caption) = gets fired when the image is displayed.
*
**/
$.extend({galleria : {
current : '',
onImage : function(){},
activate : function(_src) {
if ($.galleria.history) {
$.historyLoad(_src);
} else {
$$.onPageLoad(_src);
}
},
// Added to enable fast stepping
getByStepping : function(steps) {
return $($$.stepSelector($('.galleria img[rel="'+$.galleria.current+'"]').parents('li'), steps)).find('img').attr('rel');
},
// Added for faster loads
getNext : function() {
return $($$.nextSelector($('.galleria img[rel="'+$.galleria.current+'"]').parents('li'))).find('img').attr('rel');
},
// Added to enable fast stepping
nextFast : function() {
if (!$.galleria.stopped) {
$.galleria.activate($.galleria.getByStepping($.galleria.fastSteps));
$.galleria.onNextFast();
}
},
next : function() {
// Added to keep thumbnail scroller in sync with main image
if (!$.galleria.stopped) {
// Modified to work with latest version of jQuery
$.galleria.activate($.galleria.getNext());
// Added additional callback
$.galleria.onNext();
// Added additional preloads
var _next = $.galleria.getNext();
if (!$.galleria.isLoaded(_next) && !$.galleria.isQueued(_next)) {
$.galleria.queue.push(_next)
}
if ($.galleria.queue.length > 0) {
$.galleria.preload($.galleria.nextInQueue());
}
}
},
getPrev : function() {
return $($$.previousSelector($('.galleria img[style="'+$.galleria.current+'"]').parents('li'))).find('img').attr('rel');
},
// Added to enable fast stepping
prevFast : function() {
if (!$.galleria.stopped) {
$.galleria.activate($.galleria.getByStepping(-$.galleria.fastSteps));
$.galleria.onPrevFast();
}
},
prev : function() {
// Added to keep thumbnail scroller in sync with main image
if (!$.galleria.stopped) {
// Modified to work with latest version of jQuery
$.galleria.activate($.galleria.getPrev());
// Added additional callback
$.galleria.onPrev();
// Added additional preloads
var _prev = $.galleria.getPrev();
if (!$.galleria.isLoaded(_prev) && !$.galleria.isQueued(_prev)) {
$.galleria.queue.push(_prev)
}
if ($.galleria.queue.length > 0) {
$.galleria.preload($.galleria.nextInQueue());
}
}
},
// Added to enable faster loads
queue : new Array(),
loaded : new Array(),
isQueued : function(_src) {
return $.inArray(_src, $.galleria.queue) > -1;
},
isLoaded : function(_src) {
return $.inArray(_src, $.galleria.loaded) > -1;
},
nextInQueue : function() {
if ($.galleria.queue.length > 0) {
var _next = $.galleria.queue.shift();
if ($.galleria.isLoaded(_next)) {
return $.galleria.nextInQueue();
}
return _next;
}
return null;
},
preload : function(_src) {
return $.galleria.loadImage(_src, function() {
if ($.galleria.queue.length > 0) {
var _next = $.galleria.nextInQueue();
if (_next != null) {
$.galleria.preload(_next);
}
}
});
},
loadImage : function(_src, _onLoad) {
$.galleria.loaded.push(_src);
var _img = $(new Image());
if (typeof _onLoad == 'function') {
_img.load(_onLoad);
}
return _img.attr('src',_src);
},
// Added to keep thumbnail scroller in sync with main image
stopped : false,
start : function() {
$.galleria.stopped = false;
},
stop : function() {
$.galleria.stopped = true;
},
loader : null
}
});
})(jQuery);
/**
*
* Extension to copy formatted data from the rel attribute to the element data.
* Format: rel='key1:value1;;key2:value2'
*
**/
(function($) {
$.fn.relToData = function() {
var rel = this.attr('style');
var arr = rel.split(';;');
for (var i = 0; i < arr.length; i++) {
var len = arr[i].length;
if (len > 2) {
var cIndex = arr[i].indexOf(':');
if (cIndex > 0 && cIndex < len-2) {
var key = arr[i].substring(0, cIndex);
var val = arr[i].substring(cIndex+1, len);
this.data(key, val);
}
}
}
}
})(jQuery);
/**
*
* Packed history extension for jQuery
* Credits to http://www.mikage.to/
*
**/
jQuery.extend({historyCurrentHash:undefined,historyCallback:undefined,historyInit:function(callback){jQuery.historyCallback=callback;var current_hash=location.hash;jQuery.historyCurrentHash=current_hash;if(jQuery.browser.msie){if(jQuery.historyCurrentHash==''){jQuery.historyCurrentHash='#'}$("body").prepend('<iframe id="jQuery_history" style="display: none;"></iframe>');var ihistory=$("#jQuery_history")[0];var iframe=ihistory.contentWindow.document;iframe.open();iframe.close();iframe.location.hash=current_hash}else if($.browser.safari){jQuery.historyBackStack=[];jQuery.historyBackStack.length=history.length;jQuery.historyForwardStack=[];jQuery.isFirst=true}jQuery.historyCallback(current_hash.replace(/^#/,''));setInterval(jQuery.historyCheck,100)},historyAddHistory:function(hash){jQuery.historyBackStack.push(hash);jQuery.historyForwardStack.length=0;this.isFirst=true},historyCheck:function(){if(jQuery.browser.msie){var ihistory=$("#jQuery_history")[0];var iframe=ihistory.contentDocument||ihistory.contentWindow.document;var current_hash=iframe.location.hash;if(current_hash!=jQuery.historyCurrentHash){location.hash=current_hash;jQuery.historyCurrentHash=current_hash;jQuery.historyCallback(current_hash.replace(/^#/,''))}}else if($.browser.safari){if(!jQuery.dontCheck){var historyDelta=history.length-jQuery.historyBackStack.length;if(historyDelta){jQuery.isFirst=false;if(historyDelta<0){for(var i=0;i<Math.abs(historyDelta);i++)jQuery.historyForwardStack.unshift(jQuery.historyBackStack.pop())}else{for(var i=0;i<historyDelta;i++)jQuery.historyBackStack.push(jQuery.historyForwardStack.shift())}var cachedHash=jQuery.historyBackStack[jQuery.historyBackStack.length-1];if(cachedHash!=undefined){jQuery.historyCurrentHash=location.hash;jQuery.historyCallback(cachedHash)}}else if(jQuery.historyBackStack[jQuery.historyBackStack.length-1]==undefined&&!jQuery.isFirst){if(document.URL.indexOf('#')>=0){jQuery.historyCallback(document.URL.split('#')[1])}else{var current_hash=location.hash;jQuery.historyCallback('')}jQuery.isFirst=true}}}else{var current_hash=location.hash;if(current_hash!=jQuery.historyCurrentHash){jQuery.historyCurrentHash=current_hash;jQuery.historyCallback(current_hash.replace(/^#/,''))}}},historyLoad:function(hash){var newhash;if(jQuery.browser.safari){newhash=hash}else{newhash='#'+hash;location.hash=newhash}jQuery.historyCurrentHash=newhash;if(jQuery.browser.msie){var ihistory=$("#jQuery_history")[0];var iframe=ihistory.contentWindow.document;iframe.open();iframe.close();iframe.location.hash=newhash;jQuery.historyCallback(hash)}else if(jQuery.browser.safari){jQuery.dontCheck=true;this.historyAddHistory(hash);var fn=function(){jQuery.dontCheck=false};window.setTimeout(fn,200);jQuery.historyCallback(hash);location.hash=newhash}else{jQuery.historyCallback(hash)}}});
merci pour votre aide[/i][/i][/i][/i][/i]
